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Monitoring the quality of marine ecosystems is a challenge to achieve and preserve their good environmental status. Real time or near real time acquisition and collection of physical, chemical and biological data series describing the health conditions of marine environments is needed not only when pollution episodes occur, to set up proper remediation measures, but also to follow natural variability of water quality occurring at different time scales.
The development of advanced systems for environmental monitoring (coastal and offshore buoys and platforms, unmanned or remotely controlled submersible and unsubmersible vehicles, etc.) gave a great contribution to operational oceanography, helping to bypass the limitations and costs of traditional oceanographic surveys.
The systems here described constitute an improvement and application of the know-how acquired in the last two decades in the field of advanced systems for environmental investigations. Potential advantages of the new developed system in comparison with previous prototypes are described. A wide range of applications is possible, covering the cases when conventional ‘manual’ sampling is not possible, or dangerous, for example in proximity to glaciers, or when oil spill, toxic algal blooms, waste water must be sampled. As a first test, the developed system has been used in Arctic waters (Svalbard Islands) to evaluate spatial variations in the microbial assemblage.
Results obtained indicate that the developed automatic vehicle and water multisampler are a good complement of traditional oceanographic cruises, and constitute a practical low-cost system to obtain data with good spatio-temporal resolution both for the initial characterization and for the study of possible natural or anthropogenic disturbance in water quality.
advanced systems, automatic multisampler, autonomous vehicle Shark, extreme conditions
[1] Zappalà, G., Caruso, G. & Crisafi, E., An automatic multisampler for bacteriological water quality evaluation: some applications. Geophysical Research Abstracts, 5, 11447, 2003.
[2] Zappalà, G, Caruso, G. & Crisafi, E., Coastal pollution monitoring by an automatic multisampler coupled with a fluorescent antibody assay. Proceeding of the 5th International Conference on Environmental Problems in Coastal Regions, Coastal Environment V, eds. Brebbia, C.A., Saval Perez, J.M., Garcia-Andion, L & Villacampa, Y. WIT Press: Southampton, pp. 125–133, 2004.
[3] Caccia, M., Bibuli, M., Bono, R. & Bruzzone, G., Basic navigation, guidance and control of an unmanned surface vehicle. Autonomous Robots, 25(4), pp. 349–365, 2008. http://dx.doi.org/10.1007/s10514-008-9100-0
[4] Bibuli, M., Bruzzone, G., Caccia, M. & Lapierre, L., Path-following algorithms and experiments for an Unmanned Surface Vehicle. Journal of Field Robotics, 26(8), pp. 669–688, 2009. http://dx.doi.org/10.1002/rob.20303
[5] Zappalà, G., Caruso, G. & Crisafi, E., The SAM integrated system for coastal monitoring. Proceeding of the 4th International Conference on Environmental Problems in Coastal Regions, Coastal Environment IV, ed. Brebbia, C.A. WIT Press: Southampton, pp. 341–350, 2002.
[6] Zappalà, G., Caruso, G., Azzaro, F. & Crisafi, E., Integrated environment monitoring from coastal platforms. Proceeding of the Sixth International Conference on the Mediterranean Coastal Environment, ed. Ozhan, E., MEDCOAST, Middle East Technical University: Ankara, 3: pp. 2007–2018, 2003.
[7] Zappalà, G. & Azzaro, F., A new generation of coastal monitoring platforms. Chemistry and Ecology, 20(5), pp. 387–398, 2004. http://dx.doi.org/10.1080/02757540410001727990
[8] Zappalà, G., Caruso, G., Azzaro, F. & Crisafi, E., Multiparametric marine monitoring from automatic coastal platforms. Rapports et procès-verbaux, 37th CIESM Congress, Barcelona (Spain), p. 154, 2004.
[9] Zappalà, G., Caruso, G., Piermattei, V., Bonamano, S., Madonia, A., Di Cicco, A., Martellucci, R. & Marcelli, M., Integrated marine measurements in Civitavecchia, near Rome. WIT Transactions on Modelling and Simulation, 55, pp. 221–235, 2013. http://dx.doi.org/10.2495/CMEM130181
[10] Zappalà, G. & Manzella, G.M.R., An automatic multiple launcher for expendable probes. Proceeding of the 4th International Conference on EuroGOOS European Operational Oceanography: Present and Future, eds. Dahlin, H., Flemming, N.C., Marchand, P., Petersson, S.E., pp. 188–191, 2006. http://dx.doi.org/10.5194/osd-3-997-2006
[11] Zappalà, G., Development of advanced instrumentation for operational oceanography. WIT Transactions on Modelling and Simulation, 46, WIT Press, Southampton, pp. 841–850, 2007.
[12] Zappalà, G., Reseghetti, F. & Manzella, G.M.R., Development of an automatic multiple launcher for expendable probes. Ocean Sciences, 3, pp. 173–178, 2007, available at: www.ocean-sci.net/3/173/2007/
[13] Zappalà, G., A software set for environment monitoring networks. Proceeding of Envirosoft 2004, Development and Application of Computer Techniques to Environmental Studies X, eds. Latini, G., Passerini, G & Brebbia, C.A. WIT Press: Southampton, pp. 3–12, 2004.
[14] Zappalà, G., A versatile software-hardware system for environmental data acquisition and transmission. Proceeding Computational Methods and Experimental Measurements XIV, eds. Brebbia, C.A & Carlomagno, G.M. WIT Press: Southampton, pp. 283–294, 2009.
[15] Caruso, G., Leucine aminopeptidase, β-glucosidase and alkaline phosphatase activity rates and their significance in nutrient cycles in some coastal Mediterranean sites. Marine Drugs, 8(4), pp. 916–940, 2010. http://dx.doi.org/10.3390/md8040916
[16] Caruso, G., Decembrini, F., Caruso, R., Zappalà, G., Bergamasco, A. & Leonardi, M., Are microbial enzyme activities suitable indicators of the trophic state of marine ecosystems? In: Pollution Monitoring, eds. Ortiz,A.C & Griffin, N.B. NOVA Science Publishers, pp. 195–210, 2011.
[17] Harmel R.D., King, K.W. & Sladee, R.M., Automated storm water sampling on small watersheds. Applied Engineering in Agriculture, 19(6), pp. 667–674, 2003. http://dx.doi.org/10.13031/2013.15662
[18] Facchi, A., Gandolfi, C. & Whelan, M.J., A comparison of river water quality sampling methodologies under highly variable load conditions. Chemosphere, 66, pp. 746–756, 2007. http://dx.doi.org/10.1016/j.chemosphere.2006.07.050
[19] Dickey, T., Marra, J., Weller, R., Sigurdson, D., Langdon, C. & Kinkade, C., Timeseries of bio-optical and physical properties in the Arabian Sea: October 1994–October 1995. Deep-Sea Research II, 45, pp. 2001–2025, 1998. http://dx.doi.org/10.1016/S0967-0645(98)00061-7
[20] Honda, M.C. & Watanabe, S., Utility of an automatic water sampler to observe seasonal variability in nutrients and DIC in the Northwestern North Pacific. Journal of Oceanography, 63, pp. 349–362, 2007. http://dx.doi.org/10.1007/s10872-007-0034-5
[21] Hop, H., Pearson, T., Nøst Hegseth, E., Kovacs, K.M., Wiencke, C., Kwasniewski, S., et al., The marine ecosystem of Kongsfjorden, Svalbard. Polar Research, 21(1), 167–208, 2002. http://dx.doi.org/10.1111/j.1751-8369.2002.tb00073.x
[22] Kirchman, D.L., Moran, X.A.G. & Ducklow, H., Microbial growth in the polar oceans–role of temperature and potential impact of climate change. Nature Reviews of Microbiology, 7, pp. 451–459, 2009. http://dx.doi.org/10.1038/nrmicro2115